<template>
  <view class="cart-container" v-if="cart.length!==0">
    <!-- 收货地址区域 -->
    <my-address></my-address>
    <!-- 购物车商品标题区 -->
    <view class="cart-title">
      <!-- 左侧图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
 
    <!-- 购物车商品列表区域 -->
    <!-- uni-swipe-action是最外层包裹性质容器 -->
    <view class="">
      
    
    <uni-swipe-action>
     <block v-for="(goods, i) in cart" :key="i">
      <!-- uni-swipe-action-item可以为其字节点提供滑动操作的效果，需要通过options属性指定操作按钮的配置 -->
      <uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(goods)">
        <my-goods :goods="goods" :show-radio="true" :show-num="true" @num-change="numChangeHandler" @radio-change="radioChangeHandler"></my-goods>
      </uni-swipe-action-item>
     </block>
    </uni-swipe-action>
    </view>
    <!-- 结算区域 -->
    <my-settle></my-settle>
  </view>
  <!-- 购物车为空区域 -->
  <view class="empty-cart" v-else>
    <image src="/static/image/没有了.webp" class="empty-img"></image>
    <text class="tip-text">没有了。。。</text>
  </view>
</template>

<script>
  //按需导入m_cart模块中的total映射为当前页面计算属性
  import {mapState,mapMutations} from 'vuex'
  //导入自己封装的mixin模块
  import badgeMix from '@/mixins/tabbar-badge.js'
  export default {
    //将badgeMix混入到当前页面中使用
    mixins: [badgeMix],
   data() {
     return {
       options: [{
         text: '删除', // 显示的文本内容
         style: {
           backgroundColor: '#C00000' // 按钮的背景颜色
         }
       }]
     }
   },
    computed: {
      ...mapState('m_cart',['cart']),
      
    },
    onShow() {
     
    },
    methods: {
      ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
      //商品的勾选状态发生了变化
      radioChangeHandler(e){
        this.updateGoodsState(e)
      },
      //商品的数量发生了变化
      numChangeHandler(e) {
        this.updateGoodsCount(e)
      },
      //点击了滑动删除操作按钮
      swipeActionClickHandler(goods){
        this.removeGoodsById(goods.goods_id)
      }
    
    }
  }
</script>

<style lang="scss">
  .empty-cart{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
    .empty-img{
      width: 90px;
      height: 90px;
    }
    .tip-text{
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
  
  .cart-container{
    padding-bottom: 50px;
  }
.cart-title{
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  border-bottom: 1px solid #efefef;
  .cart-title-text{
    margin-left: 10px;
    
  }
}
</style>
